EP 2749797 A4 20150819 - SEAL DEVICE
Title (en)
SEAL DEVICE
Title (de)
DICHTUNGSVORRICHTUNG
Title (fr)
DISPOSITIF D'ÉTANCHÉITÉ
Publication
Application
Priority
- JP 2011232159 A 20111021
- JP 2012075674 W 20121003
Abstract (en)
[origin: EP2749797A1] Provided is a seal device including: three ring-shaped first vertical wall portions (21) which extend toward a rotational body (12) from a stationary body (11) and are arranged at predetermined intervals in an axial center direction (A) of the rotational body (12); a ring-shaped second vertical wall portion (22) which extends toward the rotational body (12) from the stationary body (11) and is adjacent to the first vertical wall portions (21), the thickness of which is thicker than the first vertical wall portions (21); a ring-shaped protrusion portion (23) which faces the second vertical wall portion (22) and protrudes toward the stationary body (11) from the rotational body (12); and a plurality of swirl breaker chambers (24) which are arranged in the stationary body (11) at predetermined intervals in a circumferential direction of the rotational body (12) to face the protrusion portion (23). The seal device suppresses a flow between the stationary body and the rotational body and thus suppresses an unstable vibration of the rotational body to enable the improvement of sealing performance.
IPC 8 full level
F16J 15/447 (2006.01); F01D 11/00 (2006.01); F01D 11/02 (2006.01)
CPC (source: EP US)
F16J 15/447 (2013.01 - US); F16J 15/4472 (2013.01 - EP US); F01D 11/003 (2013.01 - EP US); F05D 2240/55 (2013.01 - EP US)
Citation (search report)
- [X] US 1463018 A 19230724 - OSCAR JUNGGREN
- [X] GB 1505534 A 19780330 - MASCHF AUGSBURG NUERNBERG AG [DE]
- [A] WO 2004113770 A2 20041229 - ELLIOTT CO [US], et al
- See references of WO 2013058112A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2749797 A1 20140702; EP 2749797 A4 20150819; CN 103717951 A 20140409; CN 103717951 B 20160120; JP 2013087935 A 20130513; JP 5774963 B2 20150909; US 2014175754 A1 20140626; WO 2013058112 A1 20130425
DOCDB simple family (application)
EP 12841052 A 20121003; CN 201280038690 A 20121003; JP 2011232159 A 20111021; JP 2012075674 W 20121003; US 201214236988 A 20121003